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July 25, 2014

Homework Help: Machanics

Posted by Anonymous on Sunday, January 13, 2013 at 6:52pm.

An electron moving at a speed of 5 multiply by 10 raise to power six m/s was shot through a sheet of paper which is 2.1 multiply by 4cm thick.the electron emerges from the paper with a speed of 2 multiply by 10 raise to power six m/s,find the time taken by the electron to pass through the sheet.

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